Schneider Modicon Quantum 140CPS21400 Summable Power Supply Module

Product Overview

The Schneider Electric 140CPS21400 serves as a high-performance, summable power supply module within the Modicon Quantum automation platform. This module converts a 24 V DC input into a regulated 5.1 V DC output to power the Quantum backplane and associated I/O modules. Designed for high-availability systems, its "summable" capability allows multiple units to work in parallel, increasing the total current available to the rack while providing built-in redundancy for critical industrial processes.

Condition: 100% Brand New, Original Factory Sealed.

Technical Specifications

This module features rugged construction and precise electrical characteristics suitable for demanding environments:

Engineering Advantages

• Redundant Power Architecture: The summable design eliminates single points of failure. By installing two 140CPS21400 modules, you ensure the PLC continues to operate even if one power supply fails.

• Advanced Fault Signaling: The integrated 1 NC alarm contact provides immediate notification to the control system or an external siren if a power fault occurs, reducing MTTR (Mean Time To Repair).

• Superior Interference Immunity: This module withstands electrostatic discharges (up to 8 kV air) and high-frequency electromagnetic fields (10 V/m), ensuring stable logic power in noisy electrical environments near high-power motors or drives.

• High Altitude Performance: Unlike standard power supplies that require significant derating, the 140CPS21400 operates reliably at altitudes up to 5000 meters, making it ideal for specialized mining or mountain-based infrastructure.

• Rapid Maintenance Diagnosis: A prominent green LED (PWR OK) provides instant local signaling, allowing technicians to verify power status at a glance without using a multimeter.

FAQs

• Can the 140CPS21400 replace a non-summable Quantum power supply?

  Yes, you can use this module in any Modicon Quantum rack. However, to utilize the "summing" feature, the backplane must support multiple power supplies, and you must configure the system to recognize the parallel power architecture.

• What type of fuse should I use for input protection?

  Schneider Electric recommends a 5 A slow-blow fuse to handle the initial inrush current (which peaks at 25 A for a short duration) while providing sustained overcurrent protection during normal 24 V DC operation.

• Does this module support hot-swapping?

  While the Quantum platform offers robust features, we recommend following standard safety procedures and checking your specific backplane manual regarding "Hot Standby" configurations before removing a power supply under load.

• What happens if the input voltage drops below 20 V?

  The module includes a power interruption buffer of up to 100 ms. If the voltage remains below the 20 V threshold, the internal protection will trigger the NC alarm contact to signal a power fault, protecting the PLC CPU from unstable logic levels.